DevTools: Remove InspectorDOMAgent::m_idToNodesMap entries correctly.

Source/core/inspector/InspectorDOMAgent.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 328 matching lines @@
     return id;
 }
 
 void InspectorDOMAgent::unbind(Node* node, NodeToIdMap* nodesMap)
 {
     int id = nodesMap->get(node);
     if (!id)
         return;
 
     m_idToNode.remove(id);
+    m_idToNodesMap.remove(id);
 
     if (node->isFrameOwnerElement()) {
         Document* contentDocument = toHTMLFrameOwnerElement(node)->contentDocument();
         if (m_domListener)
             m_domListener->didRemoveDocument(contentDocument);
         if (contentDocument)
             unbind(contentDocument, nodesMap);
     }
 
     for (ShadowRoot* root = node->youngestShadowRoot(); root; root = root->olderShadowRoot())
@@ skipping 191 matching lines @@
     m_frontend->setChildNodes(nodeId, children.release());
 }
 
 void InspectorDOMAgent::discardFrontendBindings()
 {
     if (m_history)
         m_history->reset();
     m_searchResults.clear();
     m_documentNodeToIdMap.clear();
     m_idToNode.clear();
+    m_idToNodesMap.clear();
     releaseDanglingNodes();
     m_childrenRequested.clear();
     m_cachedChildCount.clear();
     if (m_revalidateStyleAttrTask)
         m_revalidateStyleAttrTask->reset();
 }
 
 Node* InspectorDOMAgent::nodeForId(int id)
 {
     if (!id)
@@ skipping 1522 matching lines @@
     if (!m_documentNodeToIdMap.contains(m_document)) {
         RefPtr<TypeBuilder::DOM::Node> root;
         getDocument(errorString, root);
         return errorString->isEmpty();
     }
     return true;
 }
 
 } // namespace WebCore